MFSB MFS Active Exchange Traded Funds Trust - MFS Active Core Plus Bond ETF
Quote as of Oct 26, 2026 17:27 UTC · Quotes are refreshed hourly from the data provider, so during market hours a price can be up to about 1–2 hours old; each quote shows its own timestamp.
| Previous Close | 24.20 | Day Range | 24.22 – 24.26 |
| 52-Week Range | 23.68 – 25.57 | Volume | 89.35K |
| Avg Volume | 224.93K | AUM | $724.4M (Oct 26, 2026) |
| Expense Ratio | 0.34% | Yield (TTM) | 4.74% |
| NAV | 24.15 | Premium/Discount | +0.31% indicative |
| Inception | Dec 05, 2024 | Holdings | 482 |
| Issuer | MFS | Exchange | NYSE |
| Category | Bonds | Index Tracked | Not stated in source data |
| CUSIP | 55286W108 | ISIN | US55286W1080 |
| Management | Actively managed (per issuer description) | ||
About this ETF
MFSB seeks total return through an actively managed, broad portfolio of debt securities. The fund invests in US and foreign government securities, municipal instruments, mortgage- and asset-backed securities, and corporate bonds. The portfolio includes debt instruments of any geographic location, maturity, and credit quality, focusing on investment grade debts. To construct the portfolio, the fund employs an active bottom-up approach, selecting investments based on fundamental analysis of individual instruments and issuers. The adviser also considers top-down factors in structuring the fund. The funds assets are diversified across industries and sectors, but may be concentrated in a single sector or a few issuers. Derivatives such as futures, forward contracts, options, and swaps may be used to adjust market and interest rate exposure or as alternatives to direct investments.
Description from the fund data provider · profile as of Oct 26, 2026.
Price Chart
Daily closing prices (price return, not total return). Comparison lines are normalized to percent change from the range start. Source: Financial Modeling Prep.
Performance
| 1M | 3M | 6M | YTD | 1Y | 3Y* | 5Y* | 10Y* | Incep.* | |
|---|---|---|---|---|---|---|---|---|---|
| Price return | +0.12% | -1.87% | -3.74% | -4.04% | -5.06% | — | — | — | -1.84% |
| Total return | +0.54% | -0.66% | -1.43% | -0.66% | -0.62% | — | — | — | +2.69% |
* Annualized. Total return uses the dividend-adjusted price series (distributions reinvested); price return uses unadjusted closes. Performance through Oct 23, 2026. Past performance does not guarantee future results.
Fees
| Net expense ratio | 0.34% | Annual cost of a $10,000 investment | $34.00 |
Illustrative calculation only: expense ratio × $10,000. It excludes trading costs, bid/ask spreads, taxes and changes in investment value. Gross vs. net expense details and any fee waivers are in the prospectus.
Holdings
Holdings list retrieved Oct 23, 2026 · The data provider's latest disclosed portfolio for this fund. Issuers publish holdings daily or monthly, so the portfolio date can be earlier; holdings are not live positions. 482 holdings stored, 25 shown.
| # | Holding | Ticker | Weight | Shares | Market Value |
|---|---|---|---|---|---|
| 1 | US TREASURY N/B | — | 10.98% | 83.20M | $81.1M |
| 2 | US TREASURY N/B | — | 6.37% | 48.53M | $47.0M |
| 3 | US TREASURY N/B | — | 5.83% | 45.05M | $43.1M |
| 4 | US TREASURY N/B | — | 3.96% | 29.50M | $29.2M |
| 5 | Cash & Cash Equivalents | — | 3.83% | 0 | $28.3M |
| 6 | US TREASURY N/B | — | 1.95% | 14.70M | $14.4M |
| 7 | FNMA TBA 30 YR 5.5 | — | 0.81% | 6.15M | $6.0M |
| 8 | BOSTON PROPERTIES LP | — | 0.71% | 5.40M | $5.2M |
| 9 | FNMA TBA 30 YR 3 | — | 0.70% | 6.22M | $5.2M |
| 10 | BANK OF AMERICA CORP | — | 0.65% | 4.92M | $4.8M |
| 11 | JPMORGAN CHASE + CO | — | 0.59% | 4.64M | $4.4M |
| 12 | ASPIRE MORTGAGE TRUST | — | 0.57% | 4.25M | $4.2M |
| 13 | FNMA TBA 30 YR 4.5 | — | 0.55% | 4.45M | $4.1M |
| 14 | HIGHWOODSREALTY LP | — | 0.52% | 4.00M | $3.8M |
| 15 | AVOLON HOLDINGS FNDG LTD | — | 0.51% | 3.95M | $3.8M |
| 16 | GOLDMAN SACHS GROUP INC | — | 0.49% | 4.12M | $3.6M |
| 17 | COREBRIDGEFINANCIAL INC | — | 0.49% | 3.65M | $3.6M |
| 18 | JEFFERIESFIN GROUP INC | — | 0.48% | 3.92M | $3.6M |
| 19 | CITADEL SECURITIES GLOBA | — | 0.48% | 3.72M | $3.5M |
| 20 | BOEING CO/THE | — | 0.47% | 3.29M | $3.4M |
| 21 | BOOZ ALLENHAMILTON INC | — | 0.46% | 3.49M | $3.4M |
| 22 | MORGAN STANLEY | — | 0.44% | 3.32M | $3.3M |
| 23 | TARGA RESOURCES CORP | TRGP | 0.44% | 3.18M | $3.2M |
| 24 | ENERGY TRANSFER LP | — | 0.43% | 3.32M | $3.2M |
| 25 | LPL HOLDINGS INC | — | 0.42% | 3.27M | $3.1M |
Click a ticker to see every ETF that owns it.
Geographic Exposure
Country weights as reported by the data provider. Developed/emerging/frontier labels follow the classification on the Methodology page. Currency hedged: No hedging indicated in the fund name.
Distributions
| Yield (TTM) | 4.74% | Paid (last 12 months) | $1.1457 |
| Frequency | Monthly | SEC yield | Not provided by our data source; see the issuer page |
| Last ex-date | Sep 30, 2026 | Last payment | $0.1009 (Oct 01, 2026) |
| Growth 1Y | — | Growth 3Y / 5Y (ann.) | — / — |
| Ex-date | Record | Pay date | Amount |
|---|---|---|---|
| Sep 30, 2026 | Sep 30, 2026 | Oct 01, 2026 | $0.1009 |
| Aug 31, 2026 | Aug 31, 2026 | Sep 01, 2026 | $0.1000 |
| Jul 31, 2026 | Jul 31, 2026 | Aug 03, 2026 | $0.0959 |
| Jun 30, 2026 | Jun 30, 2026 | Jul 01, 2026 | $0.0960 |
| May 29, 2026 | May 29, 2026 | Jun 01, 2026 | $0.0998 |
| Apr 30, 2026 | Apr 30, 2026 | May 01, 2026 | $0.0930 |
| Mar 31, 2026 | Mar 31, 2026 | Apr 01, 2026 | $0.0903 |
| Feb 27, 2026 | Feb 27, 2026 | Mar 02, 2026 | $0.0929 |
| Jan 30, 2026 | Jan 30, 2026 | Feb 02, 2026 | $0.0955 |
| Dec 30, 2025 | Dec 30, 2025 | Dec 31, 2025 | $0.0964 |
| Nov 28, 2025 | Nov 28, 2025 | Dec 01, 2025 | $0.0857 |
| Oct 31, 2025 | Oct 31, 2025 | Nov 03, 2025 | $0.0992 |
Trailing distribution yield = last 12 months of cash ÷ current price. It is NOT the SEC 30-day yield and distributions are not guaranteed to continue. The difference explained →
Risk Statistics
| Volatility 1Y / 3Y | 3.90% / — | Sharpe 1Y / 3Y | -1.23 / — |
| Max drawdown 1Y / 3Y | -4.07% / — | Sortino 1Y | -1.68 |
| Beta vs S&P 500 (3Y) | 0.067 | Correlation vs S&P 500 (1Y) | 0.433 |
| Downside deviation 1Y | 2.85% | Risk-free rate used | 4.04% (3M T-bill, FRED) |
Computed by ETF Explorer from daily dividend-adjusted closes; volatility and drawdown are annualized/period figures; S&P 500 exposure proxied by SPY. As of Oct 26, 2026. Formulas →
Liquidity
| Volume today | 89.35K | Average volume | 224.93K |
| AUM | $724.4M | Premium/Discount | +0.31% |
| Bid/Ask spread | Not provided by our data source. Check your broker's quote screen; spreads are widest at the open and close. | ||
Premium/discount compares the delayed market price with the last reported NAV: an indicative figure, not the official closing premium/discount. How ETF liquidity works →
Fund Flows (estimated)
| Period | Est. net flow | % of starting AUM | AUM start → end |
|---|---|---|---|
| 1 Week | $451.9K | +0.06% | $719.8M → $724.4M |
| 1 Month | $148.9M | +26.02% | $572.4M → $724.4M |
ETF Explorer estimate: change in reported AUM minus the market-move effect, from our own daily snapshots. Not official issuer creation/redemption data.
Official Fund Resources
External links open the issuer's site or SEC EDGAR in a new tab. The prospectus and official documents are always the authoritative source; review them before investing.
Latest News for MFSB
No articles mention this fund directly in the last 7 days; showing general ETF coverage.
Guided help: AUM is fund size. The expense ratio is the yearly cost baked into returns. NAV is the value of what the fund owns per share; the market price can sit slightly above (premium) or below (discount) it. Total return assumes distributions were reinvested. Every dataset shows its own as-of date because holdings, assets and quotes update on different schedules.